Sharpening device



Nov. 30 1926.,

F. A. DE CANIO SHARPENING DEVICE I VENTOR ATTORNEYS Patented Nov. 30, 1926.

FELIX A. DE CANIO, 0F WOODCLIFF, NEW JERSEY.

SHARPENING DEVICE.

Applicationfilcd January 22, 1926. Serial No. 82,917.

This invention relates to sharpening devices and is herein shown as particularly adapted to be used in resharpening razor blades.

The invention is characterized b the provision of a base or sup ort with W ich is associated means for rmly anchoring the blade to be sharpened in such a position as to expose the cutting edge or edges thereof to the action of a suitable sharpening instrument which is adapted to be moved longitudinally over the cutting edge or edges of the blade.

The general object of the invention is to provide a simple, inexpensive, and effective device of the character mentioned.

Other objects and advantages of the invention will become apparent from the following description when taken in connection with the accompanying drawing in which- Figure 1 is a perspective view of the device.

Figure 2 is a plan view of a sharpening instrument.

Figure 3 is a transverse sectional view through the device and showing the sharpening instrument so positioned as to be moved longitudinally over the cutting edges of a razor blade.

A blade 5, herein shown as of a Well known type, is adapted to be detachably connected to a base 6. while a sharpening instrument 7 is moved longitudinally over the cutting edges of the blade. The base 6 may be formed of wood or other suitable material and is provided with a central sup port 8. A pair of upstanding flanges 9 are carried by the base 6 and form with the support 8 a pair of channels 10.

The anchoring means for the blade 5 comprise a plate 16 suitably connected to the support 8 and located centrally and longitudinally thereof. The plate 16 is formed with a lip 17 adjacent one end thereof, and is provided with a pair of studs 18 which are received by the usual openings 20 formed in the ty e of razor blade herein shown. The lip 1'? is slightly inclined with respect to the late 16 and functions cooperatively with a Keeper 21, to lock the blade upon the support 8. the keeper being pivotally connected to the opposite end of the plate 16 and adapted to be moved from its dotted line position, shown in Figure 1, to its full line'position shown therein. The studs 18 which are received by the openings 20 in the blade 5 serve as a means for facilitating proper positioning of the blade 5 upon the support 8 so that the cutting edges of the blade will be so exposed as to be acted upon by the sharpening instrument 7. These studs 18 also'perform the important function of preventing lateral displacement of the blade once it has been anchored upon the support.

In order that the blade 5 will assume a slightly curved contour when clamped in position upon the support 8, the su port is formed with a groove 22 which is o a sufiicient depth to so receive the blade anchoring means that-the upper face of the plate 16 will lie somewhat below the parallel edges 15 of the support. By reason of such a relation between the bottom of the groove 22 and the upper face of the plate 16, the blade 5, when anchored to the support 8 is necessaril bowed, as shown in Figure 3, and its inherent resiliency is utilized to keep the cutting edges of the blade in firm contact with the edges 15 of the support.

The sharpening instrument 7 is constructed from suitable material, such as tempered steel, and is provided with diverging legs 24 which terminate in teet- 25. These feet are inclined with respect to each other so as to engage the beveled margins of the blade adjacent the cutting edges thereof, and the ends of the feet are so finished as to conform to the parallel inner faces of the flanges 9 which function as guides for the sharpening instrument 7 when the instrument is positioned as shown in Figure 3.

In order to provide a convenient means for giving to the blade a final sharpening or finish, a strip of leather 27 is suitably at tached to the bottom of the base 6. This strip of leather 27 is preferably confined within a channel, as shown, between longitudinal ribs 28 formed integral with the base 6 and projecting beyond the face of the leather.

To sharpen a razor blade, the blade is anchored to the support 8 as shown in Figure 1, whereupon the sharpening instrument 7 is positioned as shown in Figurp 3, so that the feet 25 of the instrument engage the edges 15 of the support 8. When the instrument is so positioned, it is moved backward and forward over the edges 15 of the support 8, the feet 25 riding over corresponding beveled faces of the blade adjacent opposite cutting edges thereof. After a few strokes of the sharpening instrument 7, the blade 5 is removed and thereafter anchored in a re versed position so as to expose the other beveled faces of the blade to the action of the sharpening instrument. Upon subjecting the blade to the second sharpening operation, the blade is removed, whereupon the cutting edges of the blade may be subjected to a final stropping or sharpening by passing the blade over the strips of leather 27 secured to the opposite side of the base 6.

Having thus described certain embodiments of the invention what is claimed is: 1. A blade sharpening device comprising a support, means for detachably anchoring a blade to the top oii said support with its.

support and the exposed edges of the blades.

3. A sharpening device for flexible blades comprising a centrally depressed support having edges against which opposite margins of the blade may be clamped, and means lying below the plane of said edges for anchoring a flexible blade to said support with its body portion curved and its cutting edges exposed.

4. A sharpening device for flexible blades comprising a centrally depressed support having edges against which opposite margins of the blade may be clamped, and means lying below the plane of said edges for anchoring a flexible blade to said'support with its body portion curved and its cutting edge exposed,.and iding means adapted to cooperate with said support for guiding a sharpening instrument longitudinally over the cutting edge of the blade.

, 5. A blade sharpening device comprising a support upon which a blade to be sharpened 1s adapted. to be anchored, a. lug under which one end of the blade is adapted to be positioned, and a keeper adapted to be moved over the opposite end of the blade after its other end has been positioned under said lug, and means adapted to cooperate with said blade to facilitate central positioning of the same with respect to said support.

6. A blade sharpening device comprising a support upon which a blade to be sharpened is adapted to be anchored, a lug under which one end of the blade is adapted to be positioned, and a keeper adapted to be moved over the opposite end of the blade after its other end has been positioned under said lug, and studs adapted to cooperate with said blade to facilitate central posi tioning of said blade and to retain the same centrally positioned longitudinally of said support.

7. A blade sharpening device comprising a support, a plate secured to said support, a lug carried by said plate under which one end of the blade to be sharpened is adapted to be positioned, and a keeper carried by said plate and adapted to be moved over the opposite end of the blade, said lug and said keeper cooperating to retain the blade in position upon said support.

8. A blade sharpening device comprising a support, a plate secured to said support, a lug carried by said plate under which one end of the blade to be sharpened is ada ted to be positioned, and a keeper carrie' by said plate and adapted to be moved over the opposite end of theblade, said lug and said keeper cooperating to retain the blade in position upon said support, and studs carried by said plate and adapted to. cooperate withfsaid blade to retain the same a ainst lateral movement with respect to sai support,

' 9. A sharpener for double ed e blades comprising a support having e ges over Whicha sharpening instrument is adapted to be moved longitudinally of said support, and means for clamping a double edge blade longitudinally upon said support so that the edges of the blade are exposed to the action of the sharpening instrument as it is moved over said edges..-

alfixed my In testimony whereof, I have signature to this specification.

FELIX A. DE GANIO. 

